大轴

DRG co-cultured with sciatic nerve undergoing Wallerian degeneration for 14 days in vivo in serum free DMEM/F12,1 sciatic nerve segment was added into co-culture system at the first moment, the axons were strong and straight and could adhered to each other, and the number of axons dramatically reduced compared with that of DRG cultured alone in serum free medium.

分别在无血清和有血清的条件下将新生鼠的背根神经节和体内变性14天的大鼠坐骨神经段进行联合培养作为实验组，并以在相应条件下单独培养的DRG的轴突的生长情况作为对照组来观察比较轴突的生长情况。

Results Under our experimental conditions, three kinds of NO donors when in lower concentrations could not cause obvious changes of axons while when the concentration of DETA NONOate was doubled, it could induce the non-selective demyelination and Wallerian degeneration of both sensory and motor nerve fibers.

结果：在本实验条件下，应用三种NO供体的低浓度，都不能引起大鼠坐骨神经轴突的改变；将DETA NONOate浓度加倍则可导致轴突脱髓鞘和沃勒变性，但对有髓鞘纤维和无髓鞘纤维并无选择性作用。

2DRG co-cultured with sciatic nerve undergoing Wallerian degeneration for 14days in vivo in serum free DMEM/F12,1sciatic nerve segment was added into co-culture system at the first moment,the axons were strong and straight and could adhered to each other,and the number of axons dramatically reduced compared with that of DRG cultured alone in serum free medium.2DRG cultured in serum free DMEM/F12for 4days,then the sciatic nerve segment was added into the culture system for 3days,the axons became straight and part of them adhered to each other.

分别在无血清和有血清的条件下将新生鼠的背根神经节和体内变性14天的大鼠坐骨神经段进行联合培养作为实验组，并以在相应条件下单独培养的DRG的轴突的生长情况作为对照组来观察比较轴突的生长情况。

Under the condition of poor effect of surmounting "statics with pitch-resistant",domestic scholar have made new concept —deviation control with high WOB .

大钻压动力防斜技术增加钻压引起钻柱屈曲，保特钻柱涡动，有井斜时使钻柱产生周期性变化的轴向附加力，无井斜时轴向附加力消失，克服了传统防斜技术中吊打的缺点，提高了钻井速度，达到了解放钻压的目的。

When connection come into the phase of larger deformations, axial force turn into the tensile force, prevent the further deform, it means that catenaries action occur.

进入大变形阶段后，连接轴向约束压力变为约束拉力，轴向拉力阻止钢梁自身进一步变形，发生了悬链线效应。

The product nearly can be applied to all fire occasions. For vertical turbine fire pump, it's suction immerges into water, the maximal suction height is 30m, it start up rapidly and run reliably. Especially it is suitable for engineering places that water level is below pump installation foundation such as docks, ocean platform, and so on.

立式长轴式消防泵采用独特的立式长轴结构，泵吸入口淹没于水中，泵安装面距液位高度最大可达30m，由于不存在引水问题使得可靠性大大提高，尤其适用于码头、海洋平台等消防水液位低于泵安装面的工程场所。

When the rotor bearing journal of turbine-generator unit and the collector ring of generator are damaged, we can restore them on-line by TR series which are the systems that the rotor bearing journal of large-scale rotary machine is lathed subtly on-line and burnished.

汽轮发电机组的转子轴颈和发电机的集电环损伤可利用TR系列&大型回转机械转子轴颈在线精车与珩磨系统&进行在线修复，其精度可达到国际先进水平，在线修复可避免大范围拆装主设备，避免返厂加工的长途运输，可节省大量的检修时间，具有显著的经济效益。

When the large rotating arm rotates, the transmission gear is driven to rotate around the fixed gear to rotate the planetary gear, which drives in turn the small rotating arm to rotate in the direction opposite to the large rotating arm, so that the shaft of the small rotating arm reciprocates across the rotation center of the large rotating arm.

当大旋臂旋转时，传动齿轮受到驱动沿固定齿轮周转并带动卫星齿轮转动，卫星齿轮带动小旋臂作与大旋臂反向的旋转，从而使小旋臂上的固定轴随着大、小旋臂的旋转不断往复越过大旋臂的旋心作直线运动。

A set of measurement system for bearing and axle journal on passenger car has been developed to fulfill the work of measuring the dimension,data saving,communication and data management,which overcomes disadvantage of manual measurement,such as low efficiencies,high cost,high labor intensity and low precision.

针对铁路客车轴承与轴颈人工测量效率低、成本高、劳动强度大、精度差等缺点，研制了一套客车轴承与轴颈尺寸的测量系统，能够完成尺寸的测量、数据存储、通信和管理工作。

If the packing pressed tight, the wear between axle sleeve and packing will beincreased.

因为是从水泵的压水室引水，这样到达填料密封腔的轴封水的压力过高，从而造成填料处轴封水泄漏量过大。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。